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When upgrading an older vehicle to a modern Android head unit, the aftermarket radio cannot natively communicate with the car's computer. The CH-CH-004 module translates the vehicle's digital data stream. This system integration allows the new radio to process critical vehicle functions:
If you are dealing with a specific installation issue, let us know: What is the of your vehicle?
Select your vehicle make (e.g., or Chrysler ), followed by your specific model and production year. Tap Save or Reboot to initialize the handshake protocol. 4. Troubleshooting Common CHCH004 Faults Problem: Steering Wheel Controls Do Not Respond
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